Shuttle check for looms



June 22, 1954 c, sMlTH 2,681,665

SHUTTLE CHECK FOR LOOMS Filed Sept 8, 1952 3 Sheets-Sheet l Q Wa ATTORNEYS INVENTIORH Casa ieMx mz'i h June 22, 1954 c, sMlTH 2,681,665

SHUTTLE CHECK FOR LOOMS Filed Sept. 8, 1952 3 Sheets-Sheet 2 INVENT OR flassieM miih ATTORNEYS Jun 22, 1954 c. M. SMITH 2,681,665

SHUTTLE CHECK FOR LOOMS Filed Sept. 8, 1952 3 Sheets-Sheet 3 9 INVENTOR 5 ATTORNEYS Patented June 22, 1954 UNITED STATES TENT OFFICE 2 Claims. 1

This invention relates to a shuttle check for looms.

In the operation of a loom when the shuttle moves off of the lay into the box, the movement of the shuttle is arrested by means of a stationary box front which forms one wall of the box, and also by means of a second wall or binder which is mounted for pivotal movement, and in looms at present in use the binder is spring-pressed inwardly so as to check the movement of the shuttle.

An object of this invention is to provide a means for mounting on the loom whereby the impact of the shuttle against the bumper on the picker stick and the rearward movement of the picker stick under the impact will set into operation a binding means whereby the shuttle will be arrested in its movement into the box, the arresting action taking place when the shuttle is substantially entirely within the box.

Another object of this invention is to provide a shuttle check which is operative by rearward movement of the picker stick and is released by forward movement of the lay and reed so that the shuttle will be entirely free at the time it is returned across the lay.

A further object of this invention is to provide a shuttle check of this kind which can readily be mounted on the present construction of a loom.

A further object of this invention is to provide a shuttle check which is so constructed and arranged that the wear on the pivoted binder will be substantially throughout the length thereof, instead of at the forward end, as occurs at present, and the wear on the lining of the binder will be greatly reduced.

A further object of this invention is to provide a shuttle check which is positive in action and will eliminate any strain on the picker in moving the shuttle out of the box.

A further object of this invention is to provide a shuttle check which is so constructed and arranged that the binding eifect on the shuttle will increase as the shuttle nears the outer or rear end of thebox, and the shuttle will be thereby tightly held against rebounding.

.A further object of this invention is to provide a shuttle check wherein any wear on the lining can be taken up by adjustment of the check so that the binding action on the shuttle will be uniform throughout the life of the binder lining.

With the above and other objects in view, my invention consists in the arrangement, combination and details of construction disclosed in the drawings, and specification, and then more particularly pointed out in the appended claims.

In the drawings- Figure 1 is a fragmentary side elevation of a loom having a shuttle check mounted thereon constructed according to an embodiment of this invention,

Figure 2 is a fragmentary plan view of the device,

Figure 3 is a fragmentary side elevation of the connection between the shuttle check and the lay oscillator,

Figure 4 is a fragmentary side elevation partly broken away and in section, of the device on an enlarged scale,

Figure 5 is a fragmentary sectional view taken on the line 5-5 of either Figures 2 or 4,

Figure 6 is a fragmentary sectional view taken on the line 66 of Figure 4,

Figure '7 is a fragmentary sectional View taken on the line 7-? of Figure 4,

Figure 8 is a fragmentary sectional view taken on the line 8-8 of Figure 1,

Figure 9 is an end elevation of one of the cams used with this device.

Referring to the drawings, the numeral 15 (see Fig. 1) designates generally an oscillating lay which is oscillated by means of a crankshaft l6 having a crank i! with which a pitman I B is connected. The lay !5 has disposed at each end thereof a shuttle box generally designated as l9, and the box is is formed of a metal bottom wall 26 which is secured to an extension 2! of the lay It.

The box 19 also includes a stationary front 22 having a leather inner lining 23 which is adapted to be engaged by one side of a shuttle S. A shuttle binder 24 is pivotally mounted on a pivot 25 carried by the rear of the bottom wall 28, and the binder 24, as shown in Figure 5, is formed with a leather lining 25 confronting the lining 23.

The box It also has an elongated bar 2'! disposed over the binder 24 which projects slightly inwardly over the inner edge of the binder so as to hold the shuttle S against jumping out of the box as the shuttle moves inwardly and. contacts with the bumper or head 28 which is carried by the upper end of picker stick 29,

In order to provide a means whereby the inward movement of the shuttle S into the box l9 will be checked so that the shuttle will not jump out of the box, I have provided a base plate 30 bolt 32 has a collar 35 fixed thereto on the inner side of the bight 33 and one element 36 of a clamping cam is rotatably mounted on the bolt 32 inwardly of the collar 35. A second clamping cam 37 (see Figs. and 9) is rotatably mounted on the bolt 32 in confronting position to the cam 36, and the inner end of the cam 3'! is adapted to bear against a leather washer 38 which is fixed to the outer side of the binder 24 (see Fig. 5).

The inner cam 3'! has fixed thereto an upwardly projecting ear or lever 39 (see Fig. 4) with Which one end of an adjustable link 40 is pivotally connected. A cam operating lever il is pivotally mounted on a pivot 42 projecting from the plate 36, and the upper end of the lever ll is pivotally connected as at 43, to the outer or rear end of the lever t]. The lever M has projecting below the pivot 42, a short lever arm M which is disposed on an obtuse angle relative to the length of lever ll, and an L-shaped lever d5 having a U-shaped member 46 is pivotally mounted on a pivot il extending through the lower end of the short lever arm is.

The L-shaped lever it has an upwardly projecting arm 48 which is adapted to extend about the bushing 59 which is formed between the levers 4i and M, and arm 63 is normally urged to contacting relation with arm M by means of V a spring 5%. Arm 58 extends through a loop "55 (see Fig. 1) carried by lever ll and spring 59 is connected between lug 16 carried by arm 48 and lug ll carried by lever d5. Loop '55 permits limited rocking of arm 38 under the initial impact of the shuttle with the picker stick, after which spring 5% will rock lever H forwardly to braking position. The lever 45 includes a substantially horizontally disposed inwardly projecting lever arm 5% which has a housing 52 secured to the inner end thereof, and a yieldable bumper 53 is carried by the housing 52 and is disposed in. confronting position to the rear or outer edge of the picker stick 29.

The pivotal connection between lever 65 and lever arm M provides a knuckle joint by means of which the initial impact of the shuttle S with the bumper 28 of the picker stick may be taken up and further movement of the picker stick 2S outwardly or rearwardly in the box 19 will effect outward swinging of the lever 45 and forward or inward swinging of lever ii. When lever ii swings inwardly, link it will rock lever 39 and partially rotate cam 3? so that cam 3'! will by the rotation thereof and the non-rotation of cam 3t, be moved inwardly and thereby swing binder 24 inwardly into binding or clamping position relative to the outer or rear portion of the shuttle S.

A stop member 54 is adjustably secured to the plate 38 in the path of lever dl. A spring 55 is secured between lever 45 and lay extension 2i so as to constantly urge lever 65 forwardly and hold lever 48 into engagement with stop 54.

In order to provide a means whereby earn 3'! will be released from clamping engagement with binder 26 after shuttle S is entirely within the box [9, I have provided a shaft 55 which is rotatably carried by bearings 51 secured to one sideof the lay extension 2|. The shaft 56, as shown in Figure 2, is formed with a right angle arm kit (see Fig. 2) and with a longitudinal arm 59 extending from the outer end of arm 5%. An inwardly projecting ball 56 is carried by extension 55 and engages in the lower ball socket 6! which is carried by ball socket plate member 62 (see Fig. 7)

Cam 35 has projecting rearwardly or outwardly therefrom an arm 63 having a ball 64 secured thereto which engages in an upper ball socket 65. The ball socket construction 62 forms a relatively short link having ball sockets GI and 65 at each end thereof. Shaft 56 is formed at its inner end with a right angle extension 66, and with an inwardly projecting right angle extension 61. Extension 6? projects. inwardly over the pitman l8 and a right angle arm 58 projects from the extension 61 and loosely engages through an opening 69 formed in a Z-shaped member iii (see Fig. 8) which is secured to the bearing cap H of the pitman i8.

In the use and operation of this check, the plate 30 is mounted on the bottom wall 2d of the box [9 so as to dispose the horizontal arm 5! of L-shaped lever 45 in the path of the picker stick 2%. Arm 68 of shaft 56 is operatively connected with the pitman 58 by the Z-shaped member ii! so that arm or lever 68 will rock up and down with swinging movement of the pitman It. At the time the shuttle S initially enters the box !9, cam 3? will be in a released position, which is the position shown in Figures 1, 4, and 5. When the outer end of shuttle S strikes bumper or head 2 of the picker stick 29, the impact of the shuttle will cause picker stick 29 to move rearwardly a short distance and in this rearward movement of the picker stick 29 the pivoted lever construction embodied in levers 4!, $4, and d5 will rock with lever ll rocking inwardly or forwardly and thereby causing inner clamping cam 3? to rotate relative to cam 36. Rotation of cam 3'; counterclockwise, as viewed in Figures 1 and 4, will cause cam 3? to be moved inwardly and at the same time binder 24 will be moved inwardly so that lining 26 will tightly bind against the adjacent side of the shuttle S.

It will be understood that crankshaft I6 is rotated continuously and that the binding action of cam 37 will be effected during one cycle of the rotation of crankshaft :6. I

At the time the pitman I8 is rising, shaft 56 will be rotated so as to raise the lever'58 and linkage 62 and thereby effect rotation of cam 36 in a counter-clockwise direction which is the releasing direction for cam 36. When cam 36 is rotated to a released position, picker stick 29 may freely move shuttle S across the lay as shuttle S at this time is released from the clamping action between binder 24 and box front 22.

It will be understood that there will be a,

shuttle check as hereinbefore described at each end of the lay H5. The operation of this check is such that the shuttle S will be tightly clamped between the linings 23 and 25 along a substantial distance of each side of the shuttle so that there will not be any undue wear at a particular spot on either lining 23 or lining 26.

This shuttle check has been constructed and placed in successful operation on a loom which is operating at a relatively high speed and has been found to check the movement of the shuttle in a manner such that the linings on the box will not be unduly worn and in practice these linings will last for a greater period of time with this shuttle check than with the spring-pressed checks which are at present in use.

I do not mean to confine myself to the exact details of construction herein disclosed, but claim all variations falling within the purview of the appended claims.

What I claim is:

1. In combination an oscillating lay having a shuttle box at each end thereof with the box having a pivoted binder and a picker stick movable lengthwise of the box, a pair of confront ing cam members, means pivotally supporting said cam members at the outer side of said binder, means connected to one of said cam members and disposed in the path of the outward movement of said picker under impact of the shuttle entering the box whereby said one cam member will be rotated in a direction to effect inward movement of the binder and means connected with the other cam member and cooperating with the movement of the lay in one direction for rotating said other cam member to thereby effect release of said one cam member relative to said binder.

2. In combination an oscillating lay having a shuttle box at each end thereof with the box having a pivoted binder and a picker stick movable lengthwise of the box, a pair of confronting cam members, means pivotally supporting said cam members at the outer side of said binder, means connected to one of said cam members and disposed in the path of the outward movement of said picker under impact of the shuttle entering the box Wherebv said one cam member will be rotated in a direction to effect inward movement of the binder, a crankshaft, means rockably mounting said shaft lengthwise of said box, said shaft having a crank arm at one end thereof, a connection between said crank arm and said other cam, a second crank arm at the other or inner end of said shaft, and means connected to the lay operator and said second crank arm to effect rocking of said shaft in a manner whereby said one cam member will be released from said binder after the shuttle is entirely within said box.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 402,453 Horrocks Apr. 30, 1889 763,107 McGuiness June 21, 1904 851,545 Blanchette Apr. 23, 1907 962,495 Cote et al June 28, 1910 1,126,391 Chevrette Jan. 26, 1915 1,234,102 St. Laurent July 17, 1917 1,769,402 Unwin July 1, 1930 2,016,965 Huggins Oct. 8, 1935 2,045,967 Santon June 30, 1936 2,093,227 Bahan Sept. 14, 1937 2,248,872 Howell 1 July 8, 1941 

